STM32 UART DMA can receive first time correct then it receive nothing

0 I'm trying to use dma with uart in stm32f746 nucleo in receiving mode i can receive correct data in first use when i try to receive again receiving buffer doesn't change its initial values...
STM32 UART DMA can receive first time correct then it receive nothing

0 I'm trying to use dma with uart in stm32f746 nucleo in receiving mode i can receive correct data in first use when i try to receive again receiving buffer doesn't change its initial values...
UART data Receiving

Hi All, I am trying to receive data from UART and keep it in Receiver buffer. I need to check character by character whether the data received is a printable ASCII character or not. I am using LPC1768...
unstable UART receiver

I wrote a program to receive data from PC hyper terminal, but I meet a problem in developing stage. I found the MCU will lose the "start" bit of the receive data. so I will lose one characteristics...
EMAC Receive Problem

DWORD EMACReceive( DWORD *EMACBuf ) { DWORD RxProduceIndex, RxConsumeIndex; DWORD RxLength = 0; DWORD Counter = 0; /* the input parameter, EMCBuf, needs to be word aligned */ RxProduceIndex = MAC_RXPRODUCEINDEX;...